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   "source": [
    "from k3d import K3D\n",
    "from math import sqrt, sin, cos\n",
    "\n",
    "width = height = length = 100\n",
    "voxels = []\n",
    "color_map = (\n",
    "    (0.7, 0.5, 0.0),\n",
    "    (1.0, 0.0, 0.0)\n",
    ")\n",
    "\n",
    "for z in range(length):\n",
    "    for y in range(height):\n",
    "        for x in range(width):\n",
    "            r = sqrt((x - width / 2) * (x - width / 2) + (y - height / 2) * (y - height / 2) + (z - length / 2) * (z - length / 2))\n",
    "            r += sin(x / 2) * 3\n",
    "            r += cos(y / 10) * 5\n",
    "            \n",
    "            if r > width / 2:\n",
    "                voxels.append(0)\n",
    "            elif y + sin(x / 20) * 10 > height / 2:\n",
    "                voxels.append(1)\n",
    "            else:\n",
    "                voxels.append(2)\n",
    "        \n",
    "plot = K3D()\n",
    "plot += K3D.voxels(voxels, color_map, width, height, length)\n",
    "plot.display()"
   ]
  }
 ],
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